I think you need to lower the threshold for time attack and maybe hardened for four stars. I have been giving them a lot of different strategies and at least for time attack I got in the top 10 today and top 25 weekly, but still only have 3 stars.
It would be neat to have some kind of map maker mode. I am only missing a few more parts of the area journal, and at this point it's taking a while of pressing "regenerate map" to try and get the conditions I think will lead to a new building.
For example, it took several actual minutes of seeding new maps to find one that had three forests and a water surrounding a grass tile.
The "h" and "n" latin characters look a lot alike in the font you're using, it can make it a bit hard to tell whether someone's saying "ne" or "he," for example, which makes for a bit of an annoying challenge during the faster obstacle destroy parts.
I really wish the modules you own sorted by the order they appear in shops, rather than the order you bought them in. I'm just OCD enough to be annoyed at the fact that my afterburner sits in between all my mining lasers, but not enough to sell them all and rebuy.
 "Tactical Weapon Pack 2"){kind=icon}
 "Stop the Darkness"){kind=icon}
 "Kana Warrior / かなウォリアー"){kind=icon}
 "Astrox"){kind=icon}
drag and drop ordering is on my list :)